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3 years ago

Factor 49x^2 -7x -30 please hurry

Mathematics

2 answers:

salantis [7]3 years ago

5 0

Answer:

(7x + 5)(7x - 6)

Step-by-step explanation:

49x² - 7x - 30

49 is 7 x 7 , 30 is 2 x 3 x 5

49x² - 42x + 35x - 30

7x(7x - 6) + 5(7x - 6)

(7x + 5)(7x - 6)

Evgen [1.6K]3 years ago

5 0

Answer:

The answer is

Step-by-step explanation:

49x² - 7x - 30

To factor the expression rewrite -7x as a difference

That's

49x² + 35x - 42x - 30

<u>Factor out 7x from the expression</u>

7x( 7x + 5) - 42x - 30

<u>Factor out - 6 from the expression</u>

7x(7x + 5) - 6( 7x + 5)

Factor out 7x + 5 from the expression

The final answer is

Hope this helps you

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Which expression is equivalent to (x Superscript one-fourth Baseline y Superscript 16 Baseline) Superscript one-half?

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The expression that is equal to (x Superscript one-fourth Baseline y Superscript 16 Baseline) is x Superscript one-eighth Baseline y Superscript 8.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The expression that is equal to (x Superscript one-fourth Baseline y Superscript 16 Baseline) can be found by simplifying the given algebraic equation,

$(x^{\frac14}y^{16})^{\frac12}\\\\=x^{(\frac14 \times \frac12)} \times y^{(16 \times \frac12)}\\\\= x^{\frac18}y^{8}$

Hence, the expression that is equal to (x Superscript one-fourth Baseline y Superscript 16 Baseline) is x Superscript one-eighth Baseline y Superscript 8.

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3 years ago

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Step-by-step explanation:

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3 years ago

Solve the following system of equations: x + 3y = 10 and 2x + 2y = 12

Thepotemich [5.8K]

Answer:

x=4 and y=2

Step-by-step explanation: Step 1: Solve x+3y=10 for x:

x+3y=10

x+3y+−3y=10+−3y(Add -3y to both sides)

x=−3y+10

Step 2: Substitute−3y+10for x in2x+2y=12:

2x+2y=12

2(−3y+10)+2y=12

−4y+20=12(Simplify both sides of the equation)

−4y+20+−20=12+−20(Add -20 to both sides)

−4y=−8

−4y

−4

−8

−4

(Divide both sides by -4)

y=2

Step 3: Substitute 2 for y in x=−3y+10:

x=−3y+10

x=(−3)(2)+10

x=4(Simplify both sides of the equation)

So your answer would be x=4 and y=2

Hope this helps

4 0

3 years ago

Factor 49x^2 -7x -30 please hurry​

Factor 49x^2 -7x -30 please hurry